<template>
    <div class="search-div">
        <!-- 搜索表单 -->
        <el-form label-width="70px" size="small">
            <el-form-item label="角色名称">
                <el-input
                        v-model="queryDto.roleName"
                        style="width: 100%"
                        placeholder="角色名称"
                        ></el-input>
            </el-form-item>
            <el-row style="display:flex">
                <el-button type="primary" size="small" @click="searchSysRole">
                    搜索
                </el-button>
                <el-button size="small" @click="resetData">重置</el-button>
            </el-row>
        </el-form>

        <!-- 添加按钮 -->
        <div class="tools-div"> 
            <el-button type="success" size="small" @click="addShow">添 加</el-button>
        </div>

        <!-- 添加角色表单对话框 -->
        <el-dialog v-model="dialogVisible" title="添加或修改角色" width="30%">
            <el-form label-width="120px">
                <el-form-item label="角色名称">
                    <el-input   
                    v-model="sysRoleObj.roleName" />
                </el-form-item>
                <el-form-item label="角色Code">
                    <el-input  
                    v-model="sysRoleObj.roleCode"/>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" @click="submit()" >提交</el-button>
                    <el-button @click="dialogVisible = false">取消</el-button>
                </el-form-item>
            </el-form>
        </el-dialog>
        
        <!--- 角色表格数据 -->
        <el-table :data="list" style="width: 100%">
            <el-table-column prop="roleName" label="角色名称" width="180" />
            <el-table-column prop="roleCode" label="角色code" width="180" />
            <el-table-column prop="createTime" label="创建时间" />
            <el-table-column label="操作" align="center" width="280" #default="scope">
                <el-button type="primary" size="small" @click="editShow(scope.row)">
                    修改
                </el-button>
                <el-button type="danger" size="small" @click="deleteShow(scope.row)">
                    删除
                </el-button>
                <el-button type="warning" size="small" @click="showAssignMenu(scope.row)">
                    分配菜单
                </el-button>
            </el-table-column>
        </el-table>

        <!-- 分配菜单的对话框 
        // tree组件添加ref属性，后期方便进行tree组件对象的获取
        -->
        <el-dialog v-model="dialogMenuVisible" title="分配菜单" width="40%">
            <el-form label-width="80px">
                <el-tree
                        :data="sysMenuTreeList"
                        ref="tree"   
                        show-checkbox
                        default-expand-all
                        :check-on-click-node="true"
                        node-key="id"
                        :props="defaultProps"
                />
                <el-form-item>
                    <el-button type="primary" @click="doAssign">提交</el-button>
                    <el-button @click="dialogMenuVisible = false">取消</el-button>
                </el-form-item>
            </el-form>
        </el-dialog>

        <!--分页条-->
        <el-pagination
               v-model:current-page="pageParams.page"
               v-model:page-size="pageParams.limit"
               :page-sizes="[5, 10, 15, 20]"
               @size-change="fetchData"
               @current-change="fetchData"
               layout="total, sizes, prev, pager, next"
               :total="total"
        />
  </div>

</template>

<script setup>
import {ref,onMounted} from 'vue';
import { DoAssignMenuIdToSysRole,GetSysRoleMenuIds,GetSysRoleListByPage,addSysRole,updateSysRole,deleteSysRole} from '@/api/sysRole';
import { ElMessage ,ElMessageBox} from 'element-plus';

//////////////////////////分配菜单
const defaultProps = {
  children: 'children',
  label: 'title',
}
const dialogMenuVisible = ref(false)
const sysMenuTreeList = ref([])

// 树对象变量
const tree = ref() 

// 默认选中的菜单数据集合
let roleId = ref()
const showAssignMenu = async row => { 
  dialogMenuVisible.value = true
  roleId = row.id
  const { data } = await GetSysRoleMenuIds(row.id)   // 请求后端地址获取所有的菜单数据，以及当前角色所对应的菜单数据
  sysMenuTreeList.value = data.sysMenuList
  tree.value.setCheckedKeys(data.roleMenuIds)   // 进行数据回显
}

const doAssign = async () => {
    const checkedNodes = tree.value.getCheckedNodes() ; // 获取选中的节点
    const checkedNodesIds = checkedNodes.map(node => {  // 获取选中的节点的id
        return {
            id: node.id,
            isHalf: 0
        }
    })
        
    // 获取半选中的节点数据，当一个节点的子节点被部分选中时，该节点会呈现出半选中的状态
    const halfCheckedNodes = tree.value.getHalfCheckedNodes() ; 
    const halfCheckedNodesIds = halfCheckedNodes.map(node => {   // 获取半选中节点的id
        return {
            id: node.id,
            isHalf: 1
        }
    })
        
    // 将选中的节点id和半选中的节点的id进行合并
    const menuIds = [...checkedNodesIds , ...halfCheckedNodesIds]  
    console.log(menuIds);

    // 构建请求数据
    const assignMenuDto = {
        roleId: roleId,
        menuIdList: menuIds
    }
 
    // 发送请求
    await DoAssignMenuIdToSysRole(assignMenuDto) ;
    ElMessage.success('操作成功')
    dialogMenuVisible.value = false

} 


//弹窗数据
const dialogVisible = ref(false);

//进入添加
const addShow = ()=>{
    sysRoleObj.value.roleName = '';
    sysRoleObj.value.roleCode = '';
    dialogVisible.value = true;
}

//进入修改
const editShow = (row)=>{
    dialogVisible.value = true;
    console.log(row)
    sysRoleObj.value = {...row};
    console.log(sysRoleObj)
}

//用于封装添加修改的数据模型
const sysRoleObj = ref({"roleName":'',"roleCode":''})

//添加与修改的函数
const submit = async ()=>{
    if(!sysRoleObj.value.id){
        console.log('add')
        const {data,code,message} = await addSysRole(sysRoleObj.value);
        
        if(code === 200){
            dialogVisible.value = false;
            ElMessage.success("操作成功")
            fetchData();
        }
    }else{
        console.log('upd')
        const {code} = await updateSysRole(sysRoleObj.value);
        if(code === 200){
            dialogVisible.value = false;
            ElMessage.success("操作成功")
            fetchData();
        }
    }
    
}

//删除
const deleteShow = (row)=>{
    ElMessageBox.confirm('此操作将永久删除记录，是否继续？','Warning',{
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
    }).then(async ()=> {
        const {code} = await deleteSysRole(row.id);
        if(code === 200){
            ElMessage.success("删除成功")
            pageParams.value.page = 1;
            fetchData();
        }
    })
}

//分页条总记录数
let total = ref(0)

//定义表格数据模型
let list = ref([])

//分页数据
const pageParamsFrom = {
    page: 1,    //页码
    limit: 5,  //每页记录数
}

//将pageParamsFrom 包装成支持响应式的对象
const pageParams = ref(pageParamsFrom)

//搜索表单数据
const queryDto = ref({"roleName":""})

//页面加载完毕以后请求后端接口获取数据
onMounted(()=>{
    fetchData();
})

//搜索按钮点击事件处理函数
const searchSysRole = ()=>{
    fetchData();
}

//远程调用后端分页查询接口
const fetchData = async ()=>{
    const {data,code,message} = await GetSysRoleListByPage(pageParams.value.page , pageParams.value.limit , queryDto.value) ;
    list.value = data.list;
    total.value = data.total;
}

//重置
const resetData = async()=>{
    queryDto.value.roleName = '';
    fetchData();
}

</script>

<style scoped>

.search-div {
  margin-bottom: 10px;
  padding: 10px;
  border: 1px solid #ebeef5;
  border-radius: 3px;
  background-color: #fff;
}

.tools-div {
  margin: 10px 0;
  padding: 10px;
  border: 1px solid #ebeef5;
  border-radius: 3px;
  background-color: #fff;
}

</style>